• Journal of Korea Multimedia Society
• /
• v.11 no.2
• /
• pp.237-246
• /
• 2008

According to the development of information & web technology and the amount of information increases, there have been numerous problems exposed. Although, software engineers try to overcome the limitations by using software agent and web service, there hasn't been satisfactory result in the paradigm of current software agent being a provider to the user's demand. Moreover, the latest configuration of software development is based on CBD (Component Based Development). However, to construct new component using CBD costs great deal of expenses and therefore, a new model which can acquirecomponent information on the web promptly and accurately with low expenses is required. In this paper, the repository management system which acquires and manages on the Semantic web is designed and compare them to the existing component repository management and present its analysis result. In addition, to overcome the limitations of existing component repository system; low accuracy of search result, restrictive search vocabulary and faulty information, the specific plan is presented to perform a knowledge search for the component.

• Proceedings of the Korea Contents Association Conference
• /
• 2007.11a
• /
• pp.121-125
• /
• 2007

This paper proposes automatic generation method of proxy client code to automation of web service selection process through a monitoring agent. The technique of this paper help service consumer to provide source code of proxy client as it bring an attribute value of specific element of WSDL document using template rule. Namely, a XSLT script file provide code frame of dynamic invocation interface model. The automatic code generation technique need to solving starvation status of selection architecture. It is required to creating request HTTP message for every service on the result of search. The created proxy client program code generate dummy message about services. The proposed client code generation method show us a possibility of application in the automatic generation programming domain.

• The Journal of the Korea Contents Association
• /
• v.8 no.1
• /
• pp.228-235
• /
• 2008

This paper proposes automatic generation method of proxy client code to automation of web service selection process through a monitoring agent. The technique of this paper help service consumer to provide source code of proxy client as it bring an attribute value of specific element of WSDL document using template rule. Namely, a XSLT script file provide code frame of dynamic invocation interface model. The automatic code generation technique need to solving starvation status of selection architecture. It is required to creating request HTTP message for every service on the result of search. The created proxy client program code generate dummy message about services. The proposed client code generation method show us a possibility of application in the automatic generation programming domain.

• Journal of the Korean Institute of Intelligent Systems
• /
• v.15 no.2
• /
• pp.211-223
• /
• 2005

The current software development type is based on CBD (Component Based Development). However, it requires a new component model that can support rapid and accurate component information on the web due to the cost increase of building new components using CBD. The purposed of this paper is to promptly develop an application on the web which fulfills users' demand and to provide specific interface regarding the small scales of distributed component in business domains. The e-BCOS(e-Business Component System) is the agent system for the users to register distributed components and to search component information, which would increase reusability through the e-business component development of distributed components in business domains and help the users understand the information about the component. Moreover, XML is employed for specification which allows smooth specification sharing and delivery to satisfy users' variable demands.

• The Journal of the Korea Contents Association
• /
• v.12 no.12
• /
• pp.733-741
• /
• 2012

In recent, many consumers visit the online shopping malls or price comparison sites to collect the information on the product category that they are interested in. However, the volumes of the data provided by such web sites are often too enormous, and significant number of consumers have trouble in making purchase decision based on the plethora of products and sellers. In this context, modern online shopping agents need to process the retrieved information in more intelligent way before providing them to the users. This paper proposes a novel approach for identifying the main price ranges hidden in a single product category. To this end, the price of an item in the category is represented as a row vector and k-means clustering analysis is applied to the price vectors to produce the clusters that consists of the product items with similar price vectors. Then, the main price ranges of the product category can be identified from the result of clustering analysis. In general, the price is one of the most important factors in the consumers' purchase decision, and the identified main price ranges will be helpful for the online shoppers to find appropriate items effectively.

• Journal of Korea Spatial Information System Society
• /
• v.6 no.2 s.12
• /
• pp.85-95
• /
• 2004

Nowadays, the interests in travel are increasing with the changes into the ubiquitous computing environments, hence, our location-based travel information service system would be potentially invaluable to graft the Internet business models. Most of existing travel information services are provided in a one-way push manner from the contents providers to users, and they have drawbacks of enforcing users to search their needed information with the general Web surfing. Therefore, this paper propose the travel information system for gathering user information and for providing services that satisfy user requirements by filtering based on these information.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.10 no.10
• /
• pp.1885-1890
• /
• 2006

Because of the rapid development of information technology and easiness in using internet, Web becomes indispensible utility in every day life and various information has been shared in internet. However, caused by the flood of information in the Web, the skill of acquiring required information with easy becomes one of the most urgent on utilizing internet. As a solution fur the requirement, Semantic Web, which upgrades present web technology by using semantic skills, has been researched actively ud Ontology is regarded as the basis of constructing semantic web system. The aim of this research is on developing agent using ontology skills for botanic resources. Moreover, the system can be used for developing and accumulating various resources effectively.

• Proceedings of the Korean Information Science Society Conference
• /
• 2007.10c
• /
• pp.169-174
• /
• 2007

분산 데이터를 상호 운용하기 위해서는 공유되는 정보가 효율적으로 처리 및 관리되어야 한다. 특히 레거시 시스템과 같이 이질성을 내포하고 있는 환경에서 협업을 위한 상호 운용성의 확보가 효율적인 관건이다. 따라서 본 논문에서는 레거시 시스템간의 데이터 공유 및 교환에서 발생하는 의미적 상호 운용성의 문제점을 극복하는 XMDR 메시지 기반의 하이브리드 에이전트를 이용한 데이터 허브 시스템을 제안한다. 이 시스템은 데이터 협업 시 실시간으로 변화는 데이터론 일관성 있게 유지하기 위해서 질의 변환 방법인 메시지 사상 기법을 제시하여 이용한다. 이는 레거시 시스템들 간의 협업에 필요한 데이터를 공유 및 교환하는데 실시간으로 변화하는 데이터를 일관성 있게 유지한다. 그리고 통합 검색시 단일 인터페이스를 제공하여 각 시스템의 독립성을 유지하면서 데이터의 투명성과 가용성을 향상 시킬 수 있다.

• Proceedings of the Korea Association of Information Systems Conference
• /
• 2001.12a
• /
• pp.327-339
• /
• 2001

사출금형 공정계획이란 금형설계를 완료한 후에 설계된 금형을 경제적, 효율적으로 생산하기 위하여 수행해야 할 제조공정에 대한 계획이다. 이러한 공정계획은 전문가의 경험에 의존함은 물론 많은 시간이 소요된다. 그리고 사출금형 공정계획은 현장경험을 토대로 완전 수작업에 의존하고 있으므로 공정계획전문가의 경험과 숙련 등에 따른 변동, 공정설계용 데이터의 부정확 등에 의한 공정계획 그 자체가 갖고 있는 부정확도에 따라 많은 문제점이 있다. 이러한 문제점과 함께 공정계획 전문가의 부족현상, CAD/CAM시스템의 보급 및 생산형태의 다품종소량화 현상에 따라 공정계획의 자동화가 필요하게 되었다. 본 논문에서는 사출금형 공정계획을 자동화하기 위해 사례기반추론(Case Based Reasoning)을 이용하였다. 사출금형의 공정계획은 성형품의 종류에 따라 다양하고 복잡하기 때문에 지식으로서 접근하는데는 한계가 있었다 그래서 본 논문에서는 전문가들의 경험지식을 이용한 사례기반추론을 이용한 공정계획시스템인 IIMPPS(Intelligent Injection Mold Process Planning System)를 개발하였다. 사례기반추론 공정계획 시스템을 개발하기 위해 과거 공정계획을 적합한 사례로서 표현 및 구성하고, 적절한 공정계획을 수립하기 위한 사례의 검색 및 조정방법을 제안하였다. 본 시스템은 차후에 가상생산 에이전트(최형림 등, 2000) 중에서 공정계획 에이전트의 엔진으로서 역할을 수행할 것이다.

• The Journal of Society for e-Business Studies
• /
• v.9 no.2
• /
• pp.17-31
• /
• 2004

It is very important that sellers provide reasonable reserve prices for auction items in internet auction systems. Recently, an agent has been proposed to generate reserve prices automatically based on the case similarity of information retrieval theory. However, one of its drawbacks is that the recent trend of auction prices is not reflected in the generated reserve prices, because it suggests the bid price of the most similar item from the past auction data. In this paper, in order to overcome the problem, we propose a new method that generates reserve prices based on the moving average of time series analysis, in which more weight is provided to the recent bid prices. Through performance experiments, we show that the successful bid rate can be increased by preventing sellers from making unreasonable reserve prices.